Elevator brushing device.



. M. B. GOFF.

ELEVATOR BRUSHING DEVICE. APPLICATION FILED JUNE so, 1908.

Patented Aug. 31, 1909.

2 SHEETS-SHEET 1.

M. B. GOFP. ELEVATOR BRUSHING DEVICE. APPLIOATIONYPILED JUNE so, 1908.

932,981 Patented Aug. 31, 1909. 2 SHEETS-SHIFT 2. E E- El FiE-E UNTTEfi STATES FATENT UFFICE.

MANLEY B. GOFF, 0F DUBOIS, PENNSYLVANIA.

ELEVATOR BRUSHING DEVICE.

To all whom it may concern:

Be it known that I, MANLnY l3. Gorr, a citizen of 'he United States, residing at Dubois, in the county of Clearfield, State of Pennsylvania, have invented certain new and useful improvements in Elevator Brushing Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apvertains to make and use the same.

This invention relates to brushing devices adapted to the elevators employed in flour mills. and for similar purposes, and has for one of its objects to prevent the deposittherein of the webs and nests of insects and to remove the webs and nests which may have been deposited therein.

Another object of the invention is to provide a brush device adapted to be attached to the endless elevator belt and arranged to yield to the pressure of the material when or sing through the boot of the elevator. li ith thee and other objects in view the invent-ion consists of an open rectangular fra Alt. cor esponding substantially in area to the buckets or cups of the elevator and adapted to be attached by one of its side members to the elevator belt and between two of the buckets, with the unconnected sides of the frame provided with brush elements such as bristles, broom corn, or the like and projecting therefrom for contacting with the interior of the leg or spout portions through which the belt of buckets pass.

The invention further consists in a bar adapted to be attached to an elevator belt between the buckets or cups and with laterally extending ends and a frame swinging from said lateral ends and provided with brush elements, the swinging frame yieldably supported by a suitably arranged spring.

The invention further consists in certainnovel features of construction as hereafter shown and described, and then specifically pointed out in the claims, and in the drawings illustrating the preferred embodiment of the invention, Figure 1 is a sectional view of the upper portion of an elevator leg including the belt and the buckets or cups, with the improved brush device attached. Fig. 2 is a similar View of the lower Specification of Letters Patent.

Application filed June 30, 1908.

Serial No. 441,106.

portion of the leg including the boot or hopper and the belt and its buckets with the improved brush device attached, and illustrating the action of the brush device when passing through the material in the boot. Fig. 3 is a plan view in section on the line 3-3 of Fig. 2 with the brush showing beneath one of the buckets. Fig. 4c is a sectional detail, enlarged, showing the construction more fully. Fig. 5 is a section on the line 5-5 of Fig. 1. Fig. 6 s a section on the line 6-6 of F 1g. 4. Fig. 7 is a View similar to Fig. 5 illustrating a slight 1nodibuckets pass may be thoroughly brushed while at the same time not interfering with the operations of the buckets is the principal object of the present invention.

The improved device may be applied to any of the elevator legs in common use without changing or modifying them, as the improved device is applied to the belt between two of the buckets, and does not interfere with their operation.

In the drawings illustrative of the application and operation of the improved device is shown an ordinary elevator leg together with its boot or receiving hopper, the spouts forming the body of the leg represented at 1011, the head of the leg at 12, the foot at 13, the boot or hopper at 14, the upper pulley at 15, the lower pulley at 16, the endless belt at 17 and the buckets or cups at 18, these parts being of the usual form.

The improved device comprises a bar 19 bolted or otherwise attached to the belt 17 transversely thereof between two of the buckets 1S and with the ends 2021 eXtend ing laterally and apertured.

Swinging by its ends upon the apertured ends 20-21 of the bar 19 is a U shaped frame 22, the ends of the bar and the ends Patented Aug. 31, 1909.

of the frame being pivotally united by a rod 23.

Surrounding the rod 23 is a spring 2 L connected at one end at 25 to one of the lateral ends of the bar 19 and at the other end to the rod 23, the spring being so arranged as to exert its force to maintain the frame 2-2 normally and yieldably at right angles to the belt 17 and the spout members IO-11 of the leg.

The frame 22 is preferably formed of a single piece of flat metal and disposed edgewise to the direction of movement of the belt so as to present the least obstruction to its passage through the material in the boot and which will yield to abnormal pressure either from the material in the boots, or from obstructions in the spouts. The frame 22 is provided with brush elements 27 which may be of any suitable material, such as bristles, broom corn or other fibers, fine wires, or the like, and will extend to and engage against all the inner surfaces of the spout members 10l1 except the sides against which the belt runs. The frame 22 corresponds in area to the upper or open sides of the buckets 18, which are smaller than the spouts 10-11, and the brush elements extend sufliciently to bear against every part of the interior of the spouts, and thus thoroughly brush the same. Under some circumstances the frame 22 and the bar 19 may be formed integral as shown in Fig. 7, when the elevator is employed in handling material which olfers slight resistance to the passage of the frame.

The improved device is simple in construction, can be inexpensively manufactured and adapted to elevator legs of all sizes and forms, and to elevators employed for handling various qualities of material, but as above stated is more particularly adapted to elevators employed in flour mills for the purpose ofclearing them from the webs and nests of insects, and to prevent the insects from building their webs and nests in the spouts of the legs.

lVhat is claimed, is

l. A device of the class described, comprising a bar adapted to be attached to an elevator belt and with laterally extended apertured ends, a U-shaped frame swinging its terminals upon said extended ends, brush elements carried by said frame and extending outwardly therefrom, and a spring carried by said bar and operating to maintain said frame normally and yieldably connected to the bar.

-2. The combination with an elevator including a chute, a belt and a plurality of buckets spaced apart upon the belt, of a bar attached to said belt between two of said buckets, said bar having laterally extended ends, a U-shaped frame swinging at its terminals upon said lateral ends, brush elements carried by said frame and extending outwardly therefrom, and a spring carried by said bar and operating to maintain said frame normally and yieldably connected to the bar.

3. A device of the class described comprising a bar adapted to be attached to an elevator belt and with laterally extended apertured ends, a rod extending through said apertures and between said lateral ends, a U shaped frame swinging upon said rod, brush elements carried by said frame and extending outwardly therefrom, and a spring coiled around said rod with one end connected to said bar and the other end connected to said frame and operating to maintain said frame normally and yieldably connected to the bar.

In testimony whereof, I affix my s1gnature, in presence of two witnesses.

MANLEY B. oorr.

Witnesses A. J. HAAG, D. L. Snarnn. 

